1.\" $OpenBSD: glxclk.4,v 1.7 2020/04/06 00:01:08 pirofti Exp $ 2.\" 3.\" Copyright (c) 2013 Paul Irofti. 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: April 6 2020 $ 18.Dt GLXCLK 4 loongson 19.Os 20.Sh NAME 21.Nm glxclk 22.Nd AMD Geode CS5536 multi-function general purpose timer 23.Sh SYNOPSIS 24.Cd "glxclk* at glxpcib?" 25.Sh DESCRIPTION 26The 27.Nm 28driver enables two of the multi-function general purpose timers found on the 29Geode companion chip to be used as the system clock and the statistics clock. 30.Pp 31The statistics clock is implemented with interval variance support based on 32Chris Torek's paper on randomized sampling. 33.Sh SEE ALSO 34.Xr glxpcib 4 , 35.Xr intro 4 36.Rs 37.%A Steven McCanne 38.%A Chris Torek 39.%T "A Randomized Sampling Clock for CPU Utilization Estimation and Code Profiling" 40.%B "In Proc. Winter 1993 USENIX Conference" 41.%D 1993 42.%P pp. 387\(en394 43.%I USENIX Association 44.%U ftp://ftp.ee.lbl.gov/papers/statclk-usenix93.ps.Z 45.Re 46.Sh HISTORY 47The 48.Nm 49driver first appeared in 50.Ox 5.3 . 51.Sh AUTHORS 52.An -nosplit 53The 54.Nm 55driver was written by 56.An Paul Irofti Aq Mt paul@irofti.net . 57